Open-end spinning device

Abstract

The invention relates to an open end spinning device comprising a single-motor driven spinning rotor whose cup is rotationally actuated in the rotor housing which is negatively pressurized and closed by a cover element during a spinning process. According to said invention, the rotor house ( 2 ) is embodied in the form of a central element which is fixable to the frame of a textile machine and connects the control ( 3 ) of the spinning rotor ( 21 ) to the carrier ( 4 ) for the cover element ( 6 ) provided with a fibre band releasing device ( 23 ).

1. An open-end spinning device comprising a rotor housing ( 2 ) to which an underpressure can be applied during the spinning process, a spinning rotor ( 21 ), driven by a drive mechanism ( 3 ) having an individual motor and including a rotor cup which rotates in the rotor housing, and a cover element ( 6 ) for closing the rotor housing during the spinning process, the cover element ( 6 ) having supports ( 4 ) for a sliver opening device ( 23 ), wherein
 the rotor housing ( 2 ) is embodied as a central component of the spinning device and is configured for mounting in a fixed disposition on a machine frame of a textile machine and for mounting to the rotor housing of the drive mechanism ( 3 ) of the spinning rotor ( 21 ) and the cover element ( 6 ) with the supports ( 4 ) thereof for the sliver opening device ( 23 ). 
 
   
   
     2. The open-end spinning device in accordance with  claim 1 , characterized in that the rotor housing ( 2 ) is made of a metallic material with good heat-conducting properties. 
   
   
     3. The open-end spinning device in accordance with  claim 1 , characterized in that the rotor house ( 2 ) is embodied as a cast part. 
   
   
     4. The open-end spinning device in accordance with  claim 1 , characterized in that the spinning rotor ( 21 ) is seated in a contactless manner, and one of the magnetic bearings ( 24 ,  25 ) is integrated into the rotor housing ( 2 ). 
   
   
     5. The open-end spinning device in accordance with  claim 1 , characterized in that the drive mechanism ( 3 ) for the spinning rotor ( 21 ) is fixed in place on the rear wall ( 26 ) of the rotor housing ( 2 ) and is secured by threaded bolts ( 27 ), which are accessible through the opened rotor housing ( 2 ). 
   
   
     6. The open-end spinning device in accordance with  claim 1 , characterized in that the housing of the drive mechanism ( 3 ) of the spinning rotor ( 21 ) is mechanically connected with a housing ( 14 ), which contains the electronic control device ( 15 ) for the drive mechanism ( 3 ). 
   
   
     7. The open-end spinning device in accordance with  claim 1 , characterized in that the bearing arms ( 4 ) for the cover element ( 6 ) have been manufactured as cast parts. 
   
   
     8. The open-end spinning device in accordance with  claim 7 , characterized in that the bearing arms ( 4 ) can be fixed in place in the rotor housing ( 2 ) in an exactly fitting manner by means of centering pins ( 16 ) as well a threaded bolts ( 17 ). 
   
   
     9. The open-end spinning device in accordance with  claim 7 , characterized in that sliding bushings ( 28 ) are arranged in the ends of the support arms ( 4 ), which constitute a pivot shaft ( 5 ) for the releasably arranged cover element.